# SDR ASOA96009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N227AS](https://openairdocs.org/aircraft/N227AS), registered now
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- Aircraft serial: 120023
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Circuit Breaker
- Part number: 3TC1435
- Condition: Defective
- Location: Lt Engine
- Stage of operation: CR
- Nature of condition: H
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA96009

## Discrepancy

IN CRUISE FLIGHT ATL-DHN AT 18,000 FEET, EMERGENCY BUS OFF LIGHT ILLUMINATED AND AIRCRAFT LOST ALL EMERGENCY DC BUS 1 POWER.  ALL AUXILLARY AND MAIN GENERATORS CONTINUED TO OPERATE NORMALLY.  CREW DECLARED AN EMERGENCY, INITIATED A DESCENT TO GET OUT OF ICING, AND RETURNED TO ATL WHERE LANDING WAS MADE SAFELY AND WITHOUT INCIDENT.  REMOVED AND REPLACED THE EMERGENCY DC BUS 1 CIRCUIT BREAKER.  OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RELEASED FOR SERVICE.  (M)

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